206249647704 has 48 divisors (see below), whose sum is σ = 544190575320. Its totient is φ = 65131464960.

The previous prime is 206249647699. The next prime is 206249647729. The reversal of 206249647704 is 407746942602.

206249647704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×206249647704² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11894017 + ... + 11911344.

Almost surely, 2^206249647704 is an apocalyptic number.

206249647704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

206249647704 is an abundant number, since it is smaller than the sum of its proper divisors (337940927616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206249647704 is a wasteful number, since it uses less digits than its factorization.

206249647704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23805408 (or 23805385 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 206249647704 in words is "two hundred six billion, two hundred forty-nine million, six hundred forty-seven thousand, seven hundred four".